Guide to Alternative Medicine and the Digestive System

Anil Minocha, MD FACP FACG

Chapter 35: Vitamins (continued)

KEY POINTS Vitamin E is helpful in nonalcoholic fatty liver disease. Vitamin D deficiency is widely prevalent in the Western world. The effect of folic acid supplementation on colon cancer in average-risk subjects is controversial. VITAMIN A Vitamin A and Cancer1 Results of the studies examining effects of vitamin A on cancer risk have been conflicting. While some RCTs have shown no effect, others have actually demonstrated an increased risk of lung and prostate cancer in men receiving vitamin A supplements.